A Gambel's White-crowned Sparrow (Zonotrichia leucophrys gambelii) and an Eastern White-crowned Sparrow (Z. l. leucophrys).
Photo: Long Point Bird Observatory
Here is a recent article I wrote for BirdWatch Canada, a publication of Bird Studies Canada. This spring, Long Point Bird Observatory, for which I am the Program Coordinator, banded its one millionth bird, an milestone that no other Western Hemisphere bird observatory has yet reached. This article was part of a lead up to that event.
